Mmmmm, I don't know. I feel disappointed with Microsoft because I expected more from their 1st party, and despite showing a conference based in games, there wasn't a moment that made said "WOW".
As for Sony, The presentation of the content was mediocre but the content itself was a lot better than Microsoft's. I'm disappointed a little bit, because I expected more gameplay from The Order 1886 and Destiny. LBP is a surprise but it looks too much like the PS3 versions. BloodBorne appeared but only as a CGI trailer....so meh. Far Cry 4 doesn't interest me a bit, so meh too. And then there was that 30 min section that angered me a lot. I'll try to forget it as soon as possible.
At least the conference finished strong, but MGS V was disappointing again, because I expected gameplay, and not the trailer that was already released the day before. TLOU remastered didn't show any gameplay either and I don't think the cutscenes (spoilering everything by the way) is the best way to show the graphic improvements. GTA V remasted was a happy surprise but I won't buy that game again. Batman Arkham Knight didn't do anything for me, and when I was about to consider this E3 a complete failure, Naughty Dog showed Uncharted 4, and the purpose of seeing this conference was redeemed.
E3 grades at the moment:
Microsoft: 7
EA: 5
Ubisoft: 7
Sony: 7'5
If Nintendo surprise us this afternoon, they have a very good chance to "win" this E3....
Edit: And the leaks destroyed this E3 in my opinion, there was nothing surprising...